Use the sync_cache subcommand to flush all outstanding writes for one or more disks from NVRAM to the media
luxadm [ -v ] sync_cache pathname
nvram character special file provides access to the machine device driver for accessing or modifying machine-specific nonvolatile RAM. The appropriate privilege is required to open the nvram special file. The nvram special file is used by machine-specific configuration programs to store or retrieve configuration and boot information using the nonvolatile RAM or ROM provided on the machine. The nvram special file supports open, close, read, and ioctl operations.
For more Info:
http://publibn.boulder.ibm.com/doc_l...iles/nvram.htm